81128754

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{643879}}^1$

素因数の和:643894

約数の個数: 24

約数和(自身を含む): 200890560

約数和(自身を除く): 119761806

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 643879, 1287758, 1931637, 3863274, 4507153, 5794911, 9014306, 11589822, 13521459, 27042918, 40564377, 81128754]

約数ペア:

[(1, 81128754), (2, 40564377), (3, 27042918), (6, 13521459), (7, 11589822), (9, 9014306), (14, 5794911), (18, 4507153), (21, 3863274), (42, 1931637), (63, 1287758), (126, 643879)]